As said, with this class of cam, you are not supposed to shoot macro at f/2 anyway. I have my 50mm f/1.4 and it is very dreamy and hazy until f/2, then it´s still not really sharp until f/3,5, and then it´s very sharp at f/4.5 - f/8. This is how fast budget lenses work. If you want better, get ready to spend $$$$...